Python 3.9 Release Date Jun 2026

Knowing the release date is useful, but knowing its support lifespan is critical for production systems. Python 3.9's official End of Life was October 5, 2025 (exactly 5 years after release). As of April 2026, Python 3.9 is past its EOL and no longer receives security patches, including critical security fixes.

However, understanding the full release timeline is important, as the "final" release was preceded by several beta and release candidate versions. python 3.9 release date

"Tests green," a message pinged from a contributor in Japan. "Buildbots are happy." Knowing the release date is useful, but knowing